Device for producing artificial sausage skins from pasty fibrous masses of animal orvegetable origin



July 7, 1936. o. wh BECKER 2,046,541

DEVICE FoR FRODUCING ARTIFICIAL sAUsAGE sKINs FROM RAsTY FIBRoUs MAssEs oF ANIMAL 0R VEGRTABLR ORIGIN Filed 00T., 23, 1955 Patented July 7, 1936 PATENT OFFICE DEVICE FOR PRODUCING ARTIFICIAL SAUSAGE SKINS FROM PASTY FIBROUS MASSES ORIGIN OF ANIMAL OR VEGETABLE Oskar Walter Becker, Hamburg, Germany, assignor to firm Naturin Gesellschaft mit beschrankter Haftung, Weinheim-B., Germany Application October 23, 1933, Serial No. 694,902 In Germany June 4, 1932 12 claims. (ci. 18-14) This invention relates to a device for producing articial sausage skins from pasty brous masses of animal or vegetable origin extruded through annular nozzles and fed to the latter in a special manner.

In the known devices these pasty or plastic masses are fed for instance by means of little tubes which open into the annular spaceof the nozzles and are connected with pipings into which the plastic mass is introduced under pressure.

It has been found that it may be particularly advantageous to provide directly on or around the annular nozzle a supply vessel whence the plastic mass is conveyed under pressure to the annular nozzle space which is preferablylin` direct communication with the supply vessel, e. g. by smalltubes passing through the tubular casing of the nozzle orby-means of slits or other apertures in the tubular casing. Thelinvention further deals with the arrangement and form of the tubes serving for conveying the mass from the supply vessel to the annular space of the nozzles, with their connection to the nozzle casing as well as with particularly advantageous VIV forms of the annular nozzles themselves.

By way of example, several embodimentsof theinvention are diagrammatically illustrated in the accompanying drawing, in which Figure 1 is a side view, partly in section, of the device, the

,31s arrows indicating feeding possibilities; Fig. 2, a

sectional view of another construction; Fig. 3, a crosssection on the line III-III, of Fig. 2; Fig. 4, a sectional view of another construction; Fig. 5, a sectional view of a part of still another construction; .and Fig. 6, a-view of another construction with particular characterization of the conditions of motion existing with respect to the casing and core.

For the sake of clearness, the outlet end of the ,4o annular nozzle in Fig. 1 is shown in section. I is the tubular casing ofthe nozzle and contains the v hollow core 3 between which. and the casing I the Y annular space 4 is formed which receives the plastic mass for. theproduction of artificial sausage skins and in which this mass is formed into a tubular structure by rearranging a portion vof the bers. The sausageskincomes outof the annular space 4 in the form of an endless tube.

` According to the invention, a. supply Vessel V V.10 is arranged as `closely as possible to the annular nozzle and near the annular space 4, into which the plastic mass is introduced vand whence it passes'under pressure into the annular space 4. -The supply ,vessel V maybe arranged near the :5.5 annular nozzleinany desiredmanner, e. g. in

such a way as `to bein communication with the annular space 4 only by means of supply tubes or the like and without being directly connected with the nozzle, though the construction shown in the drawing where the supply vessel V sur- 5 rounds the annular nozzle is preferred, since it permits the best solution of the problem of conveying the plastic mass from the supply vessel to the annular space.

There are several possibilities of introducing 10 the plastic mass into the vessel V and conveying it to the annular space 4. Referring to Fig. 1, the plastic mass may be fed to the vessel V from the side, as indicatedby the arrow a, or from the circumference, according to the arrow b. Supply 15 to the annular space 4 may take place outside the casing, as suggested by arrow c, by means of small tubes o or the like connected to a side wall of the annular space 4, or it may be eifected completely inside the vessel V, according to arrow d, 20 in which case an annular slit, which may be subdivided, replaces the tubes.

Figs. 2 and 3 show a constructional form, in which the core of the nozzle is formed by a part 6 which leaves the annular space 4 clear between .25 itself and the casing I and which has at its rear end a reduced portion 5. A bore I0 passes through the part 5, 6, and the part 5 carries inside the casing I a member 2 which is reduced for a certain distance on the side facing the part 30 6 so as to form again the annular channel 4. The casing I is subdivided, and between both parts I an intermediate piece 25 is inserted which is guided on the part 2 and forms a part of the casing. The swellings 26, 21 insure tight closure 35 between the parts I and the part 25 which, approximately in its center, carries suitable pieces of pipe 2B, 2l, 22 and 23 which are arranged in the manner shown in Fig. 3 and which pass through the walls of member 25 so as to be in 40 communication with the end of the annular space 4. The pieces of pipe or little tubes 20, 2|, 22, 23, whose front ends may be provided with hoppers 32, 33, 34 and 35 in the manner shown in Fig. 3, are disposed inside the supply vessel V to which' 45 plastic mass is fed by correspondingly arranged pipings 28, 29, 30, 3|. Furthermore, the part 25 is connected with a drive, not shown, so that the member 25 can rotate to allow the tubes 20, 2|, 22, 23 to ll their funnels 32, 33, 34, 35 with the mass 50 contained in the vessel V'. Therefore, during the rotation of the part 25 the plastic mass is conveyed under pressure to the annular space 4, so that it can be extruded therefrom in the form of a tubular structure.

It is of course possible also to keep the part stationary while the supply vessel V' rotates,

provided corresponding means for supplying the The plastic mass is fed from the supply Vessel V" through the tubes 20', 2|', 22', 23 which open into a part 53 connected to the casing! and rotatable on the core 3 in such a way that the mass is supplied again to the annular spaceV 4. In this case, a portion of the sidewalls of the supply vessel V in which the tubes are inserted must be rotatable. Filling of the tubes with plastic mass is eiected in the manner described above. Y

The plastic mass may further be fed to the annular space Ll directly from the supply 'Wessel by means of suitablev openings, such as slits orV the like, as shown in Fig. 5. n The nozzle is of the same construction as the nozzle shown innFig. 2. Inside the supply vesselV" and directly in the casing I the slits 36 and 37 are provided through which the mass can pass from the vessel V," to the annular space 4. In this case, the plastic mass may be'introduced into the vessel V" from theY side by means of a piping 38. Instead of providing several slits in the casing I a single annular slit may be substituted.

In forming the sausage skin it is advantageous if, for instance, the supply vessel remains stationary or rotates. The outer casing of the nozzle may Valsoremain stationary, in which case the Ycore of the annular nozzle rotates partly or wholly, or the core may stand still and the casing rotate aboutthe longitudinal axis of the nozzle. It is further possible to let both parts move in opposite directions or to impart to one part'an yoscillatory motion,l so thatY there are many possibilities of motion. When the casing rotates whollyorpartly about the stationary core, it is advisable to stop the portion of the casing near the nozzle outlet while the rotary portion of the casing may be arranged'forY instance between the stationary portion of the casingvand the tubes opening into the annular space of the nozzle and serving for supplying the brous pasty mass. Suchan arrangement is shown in Fig. 6. The construction of the nozzle is practically the same as that shown in Fig. 2, and the front part of the casing is formedby the part Ia which is rmly connected with a suitable support. 8 is a cap nut and 9, a ring for adjusting the nozzle parts relative to one another. The pasty mass is supplied to the annular space 4 by suitableY pipings lI and I3 which lead eithertoadistantsupply vessel or to one directly connected Vwith the noz- .'zle. `The pipings II and I3 open into the rear stationaryrpart of the casing I, and between the two stationary parts I and Iaof the casing the VVrotary part Ib is disposed.Y Suitable swellings are designated I5 and I6 which pack the joints I `:and la and in which the part Ib is guided by corresponding counterparts. A toothed wheel I1 is keyed onto the `part Ib|` approximately in the center thereof and in mesh with, and'. rotated by,

ja companion wheel I8.y Only the part Ib of the Vcasing moves therefore, thelrnanner Yof its motion being immaterial like that of other parts. In any case, by the invention all possible'and practically feasible combinations ofthe stationary Vor rotatand claims is intended to designate the arrangement which includes the core sections 2 and 6 and the casing sections I, I and 25, in Fig. 2 for instance, and the corresponding parts lin the other gures. The term "freely rotatable is intended Vto define ordinary rotationrnot accompanied by anyV axial movement, as' distinguished from the restricted rotation which is in a sense 15 possible between two threadedly connected parts.

I claim:

1. An apparatus for making'sausage casings ofV animal or vegetable material from a plastic kneadable mass, comprising a tubular housing, a core positioned within said housing,`one end of said core being smaller thanY the inner diameter of said housing in order to form an annular space, and means for leading plastic material into'said annular space, said core being stationary and at least a portion of thatpart ofthe housing whichV surrounds said annular space being freely rotatable. K Y

-2. An apparatus forY makingV sausage casings of animal or vegetable material from a plastic kneadable mass, comprising aY tubular housing, a core positioned Within said housing, one end of said core being smaller than the inner diameter of said housingV in order to, form an annular space, 'and means for leading plastic material into said annular space, said core being stationary, the

Y end portion of said housing and the portion there- 3. An apparatus* for making sausage casings of animal or Vegetable material from a plastic kneadable mass, comprising a tubular housing, a core rpositioned. within saidrhousing, one end of said core beingA smaller thantheY inner diameterV of said housing in order to form an annular space, a supply receptacle mounted around said housing and having a chamber of which the housing forms the inner wa1land means to connect saidreceptacle and said annular space.

4. An apparatus for making sausage casings of animal or vegetable material from a plastic kkneadable mass, comprising a tubular housing, a. core positioned within said housing, one end of said core beingesmaller thanthe inner diameter of said housing in Yo rdereto forman annular space,

said core and housing being' mounted for relative free rotary movement between at least portions of the parts thereof which define said annular and said annular space. Y

5. u An apparatusfor making-sausage casingslof animalor vegetable materialfrom a plastic kneadvso space, a supply receptacle mounted around said 60 housing, and means to connect said receptacle able mass, comprising a tubular housing, a core positioned within'said housing, one end of said core being smaller than the inner diameter of saidhousing in order to form an annular space, a supply receptacle mounted around said housing,

and means torconnect said receptacle land said animal or vegetable material from a plastic kneadable mass, comprising a. tubular housing, a core positioned within said housing, one end of said core being smaller than the inner diameter of said housing in order to form an annular space, a supply receptacle mounted around said housing, and means to connect said receptacle and said annular space, comprising at least one tube extending into said receptacle and connected to said annular space, said tube being mounted for relative rotary movement around the axis of said housing.

'7. An apparatus for making sausage casings of animal or vegetable material from a plastic kneadable mass, comprising a tubular housing, a core positioned within said housing, one end of said core being smaller than the inner diameter of said housing in order to form an annular space, a supply receptacle mounted around said housing, and means to connect said receptacle and said annular space, comprising at least one tube extending into said receptacle and connected to said annular space, said tube being mounted for relative rotary movement around the axis of said housing, said tube having an opening facing in the direction of such relative movement.

8. A device for producing artificial sausage skins from pasty fibrous masses of animal or vegetable origin, comprising an annular nozzle formed of a core and a casing forming an annular space therebetween for extruding the fibrous masses, a supply vessel for the masses surrounding the annular nozzle, an intermediate pipe member forming a part of the casing and angularly rotatable relative to said core, and a plurality of tubes the ends of which are open towards the supply vessel and leading to the annular space formed between the core and the casing.

9. A device for producing articial sausage skins from pasty fibrous masses of animal or vegetable origin, comprising an annular nozzle formed of a core and a casing forming an annular space therebetween for extruding the fibrous masses', a supply vessel for the masses surrounding the annular nozzle, an intermediate pipe member forming a part of the casing and partly disposed within the supply vessel, a plurality of tubes arranged inside the vessel in the said intermediate member, said tubes extending with their open ends into the supply vessel and leading to the annular space formed between the core and casing, the core of the annular nozzle being rotatable.

10. In a device according to claim 3, passages in the walls of the housing within the supply receptacle for conveying the masses from the supply receptacle to the annular space formed between the core and the housing.

l1. A device according to claim 3, in which at least a portion of said housing is rotatable about its longitudinal axis relative to the stationary core.

12. A device according to claim 3, in which said core and housing form an annular nozzle, parts of which are rotatable in opposite directions.

OSKAR WALTER BECKER. 

